where can i inject ghk cu to GHK-Cu: Sites and Rotation do you inject ghk-cu into

Wash your hands thoroughly

Not For Not for human consumption, therapeutic use, or self-experimentation

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(Some women apply retinols on alternating nights or twice weekly to avoid the skin irritation that can come with daily useor skip it altogether and just use GHK-Cu peptides topically.) If you have sensitive skin thats irritated by either retinol or vitamin C, then using a GHK-Cu peptide can be an effective and non-irritating option to promote collagen synthesis in the skin